SharePoint Server 20133054866 The full server package for SharePoint Server 2013 and contains also the SharePoint Foundation 2013 fixes so you need only this package. http://support.microsoft.com/KB/3054866

Project Server 20133054865 The full server package for Project Server 2013 and contains also the SharePoint Server and Foundation 2013 fixes so you need only this package. http://support.microsoft.com/KB/3054865

You need to download these three and put it into the same folder, before you start the installation.

Important for all Server Applications listed above: After applying the preceding updates, run the SharePoint Products and Technologies Configuration Wizard or “psconfig –cmd upgrade –inplace b2b -wait” in command line. This needs to be done on all servers in the farm with SharePoint installed. You can run psconfig in parallel on all SharePoint machines.

You might have you own strategy to run psconfig because it depends on the farm structure and what makes sense to reduce the downtime.